
WHAT IS THE MAXIMUM LOADED
TRAILER WEIGHT
The maximum loaded trailer weight is
the highest possible weight of a fully
loaded trailer the vehicle can tow.
CALCULATING THE MAXIMUM
LOADED TRAILER WEIGHT FOR YOUR
VEHICLE
1.
Start with the gross combined weight
rating for your vehicle model and
axle ratio. 2.
Subtract all of the following that
apply to your vehicle:
• Vehicle curb weight.
• Hitch hardware weight, for example
a draw bar, ball, locks or weight
distributing hardware.
• Driver weight.
• Passenger weight.
• Payload, cargo and luggage weight.
• Aftermarket equipment weight. This equals the maximum loaded trailer
weight for this combination.
Note:
The trailer tongue load is
considered part of the payload for your
vehicle. Reduce the total payload by the
final trailer tongue weight.
Note: Consult an authorized dealer to
determine the maximum trailer weight
allowed for your vehicle if you are not
sure.
353
2022 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202109, First-Printing Towing a Trailer

TOWING A TRAILER – TROUBLESHOOTING
TOWING A TRAILER – INFORMATION MESSAGES
Details
Message
The left-hand trailer turn lamp requires service.
Trailer Left Turn Lamps Fault Check Lamps
The right-hand trailer turn lamp requires service.
Trailer Right Turn Lamps Fault Check Lamps
The trailer battery voltage is too low to charge. If there is no trailerattached, the vehicle battery voltage is low.
Trailer Battery Not Charging See Manual
The system detects a short created by the trailer lamps. Inspect andrepair the trailer wiring, or have the system checked as soon as possible.
Trailer Lighting Module Fault See Manual
The trailer stoplamps require service.
Trailer Stop Lamps Fault Check Lamps
Verify the trailer brake connections are secure and that the aftermarkettrailer brake controller device is correctly installed. Perform a trailer
brake and trailer light check if possible. If the message persists, have your vehicle checked as soon as possible.
Trailer brake system fault See manual
Perform a trailer brake and trailer light check if possible. If the messagepersists, have your vehicle checked as soon as possible.
Trailer brake module fault
The trailer sway control detects trailer sway. Reduce the vehicle'sspeed.
Trailer Sway Reduce Speed
354
2022 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202109, First-Printing Towing a Trailer

Details
Message
Displays when one or more tires on the trailer is above the recom-mended temperature.
Trailer Tire Over Temperature
One or more tires on your trailer is below the specified tire pressure.
Trailer Tire Low Specified:
A trailer tire pressure sensor requires service. If the warning stays onor continues to come on, have the system checked as soon as possible.
Trailer Tire Pressure Sensor Fault
The trailer tire pressure monitoring system requires service. If the
warning stays on or continues to come on, have the system checked as soon as possible.
Trailer Tire Pressure Monitor Fault
The system cannot detect the trailer tire pressure monitoring system.
Trailer Tire Pressure Monitor Capability Not Detected
The trailer tire pressure monitoring system is not setup.
Trailer Tire Pressure Indication Not Setup See Manual
355
2022 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202109, First-Printing Towing a Trailer

WHAT IS THE INTEGRATED
TRAILER BRAKE CONTROLLER
The trailer brake controller assists in smooth
and effective trailer braking based on the
towing vehicle
’s brake pressure.
INTEGRATED TRAILER BRAKE
CONTROLLER PRECAUTIONS WARNING: Use the integrated trailer
brake controller to properly adjust the
trailer brakes and check all connections
before towing a trailer. Failure to follow
this instruction could result in the loss of
control of your vehicle, personal injury or
death. •
Only use the manual control lever for
proper adjustment of the gain during
trailer setup. Misuse, such as application
during trailer sway, could cause instability
of trailer or tow vehicle.
• Avoid towing in adverse weather
conditions. The trailer brake controller
does not provide anti-lock control of the
trailer wheels. Trailer wheels can lock up
on slippery surfaces, resulting in reduced
stability of trailer and tow vehicle.
• The trailer brake controller is only a
factory-installed or dealer-installed item.
Ford is not responsible for warranty or
performance of the controller due to
misuse or customer installation.
Note: Do not attempt removal of the trailer
brake controller without consulting the
Workshop Manual. Damage to the unit may
result. USING THE INTEGRATED TRAILER
BRAKE CONTROLLER
1.
Make sure the trailer brakes are in good
working condition, functioning normally
and properly adjusted. See your trailer
dealer if necessary.
Note: An authorized dealer can diagnose
the trailer brake controller to determine
exactly which trailer fault has occurred. Your
vehicle warranty does not cover issues with
your trailer.
2. Hook up the trailer and make the electrical connections according to the
trailer manufacturer's instructions.
Note: Select default mode if the trailer has
surge brakes, or no brakes at all. The system
has no effect on the braking performance of
the trailer in either of these cases.
Note: If a trailer is connected by a four-pin
connector, the trailer braking function will
not be supported.
356
2022 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202109, First-Printing Integrated Trailer Brake Controller
(If Equipped)

3.
When you plug in a trailer with electric or
electric-over-hydraulic brakes, a message
confirming connection appears in the
information display.
4. Use the gain adjustment to find the desired starting point. A gain setting of
6.0 is a good starting point for heavier
loads.
Note: Use the following steps to adjust the
gain setting whenever road, weather and
trailer, or vehicle loading conditions, change
from when you initially set the gain.
5. In a traffic-free environment, tow the trailer on a dry, level surface and squeeze
the manual control lever completely.
6. If the trailer wheels lock up, indicated by
squealing tires, reduce the gain setting.
If the trailer wheels turn freely, increase
the gain setting. Repeat Steps 5 and 6
until the gain setting is at a point just
below trailer wheel lock-up. If towing a
heavier trailer, trailer wheel lock-up may
not be attainable even with the maximum
gain setting of 10.
Note: Only perform this procedure at speeds
of approximately 20–25 mph (30–40 km/h). Note:
The trailer brake controller reduces
output at vehicle speeds below 11 mph
(18 km/h) so that trailer and vehicle braking
is not jerky or harsh. This feature is only
available when applying the brakes using
your vehicle's brake pedal, not the controller.
Note: Your vehicle's brake system and the
trailer brake system work independently of
each other. Changing the gain setting on the
controller does not affect the operation of
your vehicle's brakes whether you attach a
trailer or not.
Note: With the proper electrical connection,
pressing your vehicle brake pedal or using
the manual control lever illuminates both
trailer and vehicle brake lamps.
Note: When you switch the engine off, the
controller output is disabled and the display
and module shut down. The controller
module and display turn on when you switch
the ignition on. Adjusting the Trailer Brake Gain
Increase or decrease the amount
of gain in set increments.
A
Slide the control to engage the
trailer brakes.
B
Note: Adjust gain setting before using the
trailer brake controller for the first time.
357
2022 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202109, First-Printing Integrated Trailer Brake Controller
(If Equipped)E333154

HOW DOES TRAILER SWAY
CONTROL WORK
The system applies the brakes to the
individual wheels and reduces engine torque
to aid vehicle stability.
If the trailer begins to sway, the stability
control lamp flashes and the message Trailer
Sway Reduce Speed appears in the
information display.
Stop your vehicle as soon as it is safe to do
so. Check the vertical weight on the tow ball
and trailer load distribution. TRAILER SWAY CONTROL
PRECAUTIONS WARNING:
Turning off trailer sway
control increases the risk of loss of vehicle
control, serious injury or death. Ford does
not recommend disabling this feature
except in situations where speed reduction
may be detrimental (such as hill climbing),
the driver has significant trailer towing
experience, and can control trailer sway
and maintain safe operation.
Note: This feature only activates when
significant trailer sway occurs.
Note: This feature does not prevent trailer
sway, but reduces it once it begins.
Note: This feature cannot stop all trailers
from swaying.
Note: In some cases, if vehicle speed is too
high, the system may activate multiple times,
gradually reducing vehicle speed. SWITCHING TRAILER SWAY
CONTROL ON AND OFF
1. Press
Features on the touchscreen.
2. Press
Towing.
3. Switch
Trailer Sway Control on or off.
The system turns on each time you start your
vehicle.
361
2022 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202109, First-Printing Trailer Sway Control

WHAT IS TRAILER BACKUP
ASSISTANCE
Trailer backup assistance utilizes the control
knob on the instrument panel to help you
steer a trailer. Turn the control knob in the
direction you want the trailer to go and the
system steers the vehicle.
HOW DOES TRAILER BACKUP
ASSISTANCE WORK
Trailer backup assistance uses a sticker to
detect the trailer angle relative to the towing
vehicle and provides instructions, graphics
and camera views on the touchscreen.
TRAILER BACKUP ASSISTANCE
PRECAUTIONS WARNING: Driving while distracted
can result in loss of vehicle control, crash
and injury. We strongly recommend that
you use extreme caution when using any
device that may take your focus off the
road. Your primary responsibility is the safe
operation of your vehicle. We recommend
against the use of any hand-held device
while driving and encourage the use of
voice-operated systems when possible.
Make sure you are aware of all applicable
local laws that may affect the use of
electronic devices while driving. WARNING:
This system is an extra
driving aid. It does not replace your
attention and judgment, or the need to
apply the brakes. This system does NOT
automatically brake your vehicle. If you fail
to press the brake pedal when necessary,
you may collide with another vehicle. Note:
The system is not a substitute for safe
driving practices. Always be aware of your
vehicle and trailer combination, and the
surrounding environment.
Note: The system does not detect or prevent
your vehicle or trailer from making contact
with obstacles in the surrounding
environment.
Note: The front end of your vehicle swings
out when changing the direction of the
trailer.
Note: In certain conditions, the trailer could
turn faster or the trailer angle could increase
more than anticipated. Always monitor the
clearance between the trailer and vehicle
and the surroundings.
362
2022 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202109, First-Printing Trailer Backup Assistance
(If Equipped)

The red zone indicates you have exceeded
the maximum controllable trailer angle for
the system. Immediately stop reversing. Put
your vehicle into drive (D) and pull forward
until the trailer is no longer in the red zone.
Setting the Trailer Angle Limit
1. Press
Features on the touchscreen.
2. Press
Towing.
3. Press
Manage trailers. 4. Press the saved trailer you want to
change.
5. Press
Pro Trailer Backup Assist.
6. Press
Trailer Angle Limit.
7. Press a setting.
Normal Control Angle
Default setting. This provides a balanced limit
that returns from a turn to straight backing
with minimal change to the trailer direction. Max Control Angle
Increases the trailer angle limit close to the
maximum controllable angle to allow sharper
turns but also causes more change in the
trailer direction when straightening out from
a turn.
368
2022 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202109, First-Printing Trailer Backup Assistance
(If Equipped)